new video in this morning shows the moments leading up to the arrest of dzhokhar tsarnaev. in a boston suburb. we'll have the very latest coming up. bay area runners are showing their support for the victims of the boston bombings. we're live in san francisco. good morning and thanks for joining us. i'm marty gonzalez. we'll have more on our top stories in a moment. first, let's get a quick check of your forecast with janu arasu. >> we're following the latest from boston. and this new video showing suspect dzhokar tsarnaev hiding in a boat in watertown, massachusetts. that's an infrared image of him there. right now, the 19 year old can't speak because of his injuries. he has a wound in his neck. stacey cohan has the latest on the investigation. >> reporter: a five-day nightmare for the entire boston area concluded friday night as 19-year-old dzhokar tsarnaev was found and captured -- from his hiding place -- a boat in the backyard of a watertown home. >> we had a couple thousand police officers on scene, the turn out was just incredible. >> reporter: police launched a mass